From ComingSoon.net ...

Star Trek's Sulu, Scotty, Chekov and McCoy!
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TrekMovie.com reports that Paramount Pictures revealed
four new posters for Star Trek at VegasCon '08. Just as
the studio did with the first round of posters (see those
character posters at the link below), the second round of
posters again form the "Star Trek" delta emblem when put
together. The second round includes images of John Cho
(Sulu), Simon Pegg (Scotty), Karl Urban (McCoy) and Anton
Yelchin (Chekov).

You can view bigger versions of each of the four posters
by clicking the combined poster here:
http://www.comingsoon.net/news/startreknews.php?id=47851

First four posters:
http://www.comingsoon.net/films.php?id=15645